6.Patterns in Nature: Lava Cooled pahoehoe Hawaiian lava solidifies into igneous rock with a ropelike pattern.
熔然界模式。水冷式pahoehoe夏威夷火山熔固成火成与ropelike格局。
7.B its of strombolian-type scoria and Hawaii-type effusive lava may accompany lately after Phreatomagmaticerup tion, they constitute a erup tive activity cycle in its entirely.